Function sysctl::value_oid_as

pub fn value_oid_as<T>(oid: &Vec<i32>) -> Result<Box<T>, SysctlError>

A generic function that takes an OID as argument and returns a result containing the sysctl value if success, or a SysctlError on failure

Can only be called for sysctls of type Opaque or Struct.

Example

extern crate sysctl;
extern crate libc;

use libc::c_int;

#[derive(Debug)]
#[repr(C)]
struct ClockInfo {
    hz: c_int, /* clock frequency */
    tick: c_int, /* micro-seconds per hz tick */
    spare: c_int,
    stathz: c_int, /* statistics clock frequency */
    profhz: c_int, /* profiling clock frequency */
}

#[cfg(not(target_os = "macos"))]
fn main() {
    let oid = vec![libc::CTL_KERN, libc::KERN_CLOCKRATE];
    println!("{:?}", sysctl::value_oid_as::<ClockInfo>(&oid));
}
#[cfg(target_os = "macos")]
fn main() {
    let mut oid = vec![libc::CTL_KERN, libc::KERN_CLOCKRATE];
    println!("{:?}", sysctl::value_oid_as::<ClockInfo>(&mut oid));
}